Busqué las especificaciones de los JBL 306P Mk II.

Specifications
LF Driver 165mm (6.5")
HF DRIVER SIZE 25mm (1")
HF DRIVER TYPE Soft dome
Crossover 1425Hz 4th order acoustic Linkwitz-Riley
OK FOR USE NEAR MAGNETICALLY SENSITIVE EQUIPMENT Yes
INPUT SENSITIVITY (-10dBV INPUT) 92dB / 1m
Power Configuration Bi-amplified
HF DRIVER POWER AMP 56W, Class-D
LF Driver Power Handling 56W, Class D
Frequency Response (±3 dB) 47Hz – 20kHz
Frequency Range (-10dB) 39Hz – 24kHz
LOW FREQUENCY EXTENSION (-10dB) 39Hz
Maximum Continuous SPL 92dB
Maximum Peak SPL 110dB
MAXIMUM PEAK INPUT LEVEL (-10dBV / +4dBu) +6dBV / +20.3dBu
SYSTEM DISTORTION CRITERIA <10% THD at maximum output with full compressor / limiter engagement
ELECTRICAL DISTORTION CRITERIA 0.2% THD @ 1kHz / 2.83VRMS output; <1% THD @ 1kHz, full rated output
Signal to Noise Ratio 75dBA (A-Weighted), 70dBr (unweighted), relative to 2.83VRMS output
Coverage Angle 120° x 90°
Input Connectors 1 x XLR female, 1 x TRS female, balanced
HF TRIM CONTROL -2dB, 0dB, +2dB
BOUNDARY EQ LF Shelf @ 50Hz: -3dB, -1.5dB, 0dB
AC INPUT VOLTAGE 100 – 240VAC (±10%), 50 / 60Hz
Enclosure Ported
ENCLOSURE CONSTRUCTION 15mm MDF
ENCLOSURE FINISH Matte black PVC
BAFFLE CONSTRUCTION Injection-molded structural ABS
CABINET DIMENSIONS (H x W x D) 361 x 224 x 282mm (14.2" x 8.8" x 11.1")
DISPLAY CARTON (H x W x D) 408 x 285 x 328mm (16.1" x 11.2" x 12.9")
SHIPPING CARTON (H x W x D) 418 x 292 x 338mm (16.5" x 11.5" x 13.3")
Net Weight 6.1 kg (13.42 lbs)
SHIPPING GROSS WEIGHT 7.25 kg (15.95 lbs)